§ 11 · Domain mastery

Web3 Solution Implementation

Smart contracts, wallets, on/off ramps — shipped with payments-platform discipline.

Web3 systems shipped with the same discipline as a payments platform: audited smart contracts, wallet UX and account abstraction, fiat on/off ramps, indexers, subgraph pipelines, monitoring, and the incident playbook for when things go sideways on-chain.

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§ I

Pillars

01

Audited contracts, not vibes

Solidity, Cairo, or Move with test coverage that a real auditor accepts, invariant testing, and a formal review before deploy.

02

Wallet UX + account abstraction

Signing flows humans can complete, gas abstraction, session keys, and social recovery. Not 'connect your Metamask and pray.'

03

Fiat on/off ramps + KYC

Real integrations to card and bank rails, KYC that doesn't lock legitimate users out, and reconciliation between on-chain and fiat books.

04

Indexers + subgraph pipelines

The Graph, Ponder, or hand-rolled indexers with backfill, reorg handling, and query latency that your product team can plan against.

05

On-chain monitoring

Contract call anomalies, MEV attack detection, oracle drift — alerting that fires before Twitter does.

06

Incident playbook for on-chain

Pauseable contracts, upgrade paths, communication plan, and the legal call sequence. Practice before you need it.

§ II

Domain vocabulary

The words that separate insiders from readers.

ReorgChain reorganization. Ignore it and your indexer serves phantom data during a reorg.
MEVMaximum extractable value. The class of attack where transaction ordering itself is the exploit.
Account abstractionERC-4337. The end of the seed-phrase-as-UX era, when done right.
Session keyA scoped signer authorized for a specific game or app. Where UX is trending.
Proxy upgradeThe pattern for upgradeable contracts. Storage-layout mistakes brick funds; insiders name the storage-collision scenario on sight.
Foundry vs. HardhatToolchain choice with real consequences. Teams that don't understand the difference are working from tutorials.
Oracle riskWhether your protocol trusts a price feed and what happens when the feed lies. Named on every serious postmortem.
L1 / L2 / L3Layer terminology. Teams marketing themselves as L3 without a real reason are a tell.
§ III

Open problems we help with

§ IV

What we ship

  1. 01Audited contracts on your target chain with test coverage a real auditor accepts.
  2. 02A wallet flow humans can complete, with gas abstraction.
  3. 03Fiat on/off ramps and reconciliation with your books.
  4. 04An indexer that survives reorgs.
  5. 05On-chain monitoring with alerts that fire early.
  6. 06An incident playbook practiced before you need it.
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